What
is Memory?
What
is RAM (Random Access Memory)?
kilobit Approximately one thousand bits: 1 bit x 210
(that is, 1,024 bits).
kilobyte Approximately one thousand bytes: 1 byte x 210
(that is, 1,024 bits).
megabit Approximately one million bits: 1 bit x 1,0242(that
is, 1,048,576 bits).
megabyte Approximately one million bytes: 1 byte x 1,0242
(that is, l,048,576bytes).
gigabit Approximately 1 billion bits: 1 bit X 1,0243
(that is, 1,073,741,824 bits).
gigabyte Approximately 1billion bytes: 1 byte x 10243
(that is, 1,073,741,824 bytes).
Nanosecond (ns)
Memory bank
Memory controller
composite versus noncornposite
rnodules
The terms composite and noncomposite refer to the number
of chips used on a given module. The term noncomposite describes memory modules that use
fewer chips. For a module to work with fewer chips, those chips must be higher in density
to provide the same total capacity. This table summarizes the primary differences between
composite and noncomposite modules.
|
NONCOMPOSITE
MODULES
|
COMPOSITE
MODULES
|
|
Newer 16Mbib
Technology
Achieves memory
Capacity with
Ewer chips
|
Older 4Mbit
Technology
Requires memory
Chips achieve
capacity
|
